LAUNCH      X-431 IMMO ELITE User Manual 
This function enables you to erase the codes from the vehicle after reading the 
retrieved codes from the vehicle and certain repairs have been carried out. 
Before performing this function, make sure the vehicleās ignition key is in the ON 
position with the engine off. 
Clearing DTCs does not fix the problem(s) that caused the code(s) to be set. If 
proper repairs to correct the problem that caused the code(s) to be set are not 
made, the code(s) will appear again and the check engine light will illuminate as 
soon as the problem that cause the DTC to set manifests itself.   
On the diagnostic function selection screen, tap Clear Fault Code, the following 
screen will appear.   
 
Tap YES, the system will automatically delete the currently existing trouble 
code. 
  Note: After clearing, you should retrieve trouble codes once more or turn ignition 
on and retrieve codes again. If there are still some trouble codes in the system, please 
troubleshoot the code using a factory diagnosis guide, then clear the code and recheck. 
D. Read Data Stream 
This option lets you view and capture (record) real-time Live Data. This data 
including current operating status for parameters and/or sensor information can 
provide insight on overall vehicle performance. It can also be used to guide 
vehicle repair. 
  Caution: If you must drive the vehicle in order to perform a troubleshooting 
procedure, ALWAYS have a second person help you. Trying to drive and operate the 
diagnostic tool at the same time is dangerous, and could cause a serious traffic accident.   
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